Preparation and characterization of NiFe bimetallic micro-particles and its composite with silica shell
Joint Authors
Source
Journal of Saudi Chemical Society
Issue
Vol. 23, Issue 8 (31 Dec. 2019), pp.1032-1040, 9 p.
Publisher
Publication Date
2019-12-31
Country of Publication
Saudi Arabia
No. of Pages
9
Main Subjects
Abstract EN
Magnetic NiFe particles were synthesized through hydrothermal method using hydra zine as reductant.
Composite particles with core-shell structure were further achieved by depositing silicon dioxide generated via carbonation decomposition of sodium silicate solution on the surface of magnetic cores.
Characterized by XRD, the Ni9Fe particles are of fcc-type structure, and the structure of magnetic cores in composite particles was maintained despite being covered by SiO2 shell.
The existence of SiO2 shells in the composite particles were demonstrated by SEM, EDS and IR.
The results from TG and VSM indicated that the shell structure affected the physiochem ical properties.
The composite particles exhibited remarkable resistance to oxidation in comparison with Ni9Fe particles due to being protected by SiO2 shell.
Meanwhile, both of them are soft mag netic materials, but Ms, Mr and Hc in Ni9Fe@SiO2 particle decreased compared with magnetic NiFe particles.
The formation mechanisms of Ni9Fe micro-particles and composite Ni9Fe particles were discussed.
American Psychological Association (APA)
Liu, Yan& Shen, Xiaoyi. 2019. Preparation and characterization of NiFe bimetallic micro-particles and its composite with silica shell. Journal of Saudi Chemical Society،Vol. 23, no. 8, pp.1032-1040.
https://search.emarefa.net/detail/BIM-1443198
Modern Language Association (MLA)
Liu, Yan& Shen, Xiaoyi. Preparation and characterization of NiFe bimetallic micro-particles and its composite with silica shell. Journal of Saudi Chemical Society Vol. 23, no. 8 (Dec. 2019), pp.1032-1040.
https://search.emarefa.net/detail/BIM-1443198
American Medical Association (AMA)
Liu, Yan& Shen, Xiaoyi. Preparation and characterization of NiFe bimetallic micro-particles and its composite with silica shell. Journal of Saudi Chemical Society. 2019. Vol. 23, no. 8, pp.1032-1040.
https://search.emarefa.net/detail/BIM-1443198
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 1039-1040
Record ID
BIM-1443198